This is the most popular shower enclosure of them all. The panels are held only by clamps and silicone. The clamps connect to where the glass needs the most support and the silicone helps seal the 1/8" gaps between the walls and panels. One of the big questions when someone gets a quote for an enclosure is: Why are frameless glass shower enclosures more expensive than the framed enclosures?
There are more fabrication requirements on a frameless enclosure than there are on a framed enclosure. For instance, the panels need holes that are drilled from both sides to provide a nice smooth hole. Anytime there is a glass panel to glass panel setup in an enclosure all components must line up 100% to ensure everything fits together properly upon installation. Framed enclosures do not require as much fabrication.
Most glass shower enclosure installer provider's offer the clamps in all the common finishes like chrome, gold, brass and brushed nickel. Other finishes are usually available by request.